Appox. usage (any sense): 142 per million words
Appox. usage (any sense): 24.5 per million words
Appox. usage (any sense): 0.123 per million words
Appox. usage (any sense): 0.051 per million words
Appox. usage (any sense): 0.141 per million words
Appox. usage (any sense): 0.027 per million words